Sawhorse clamp



Patented Mar. 28 1956 UNITED, STATES A PATENT OFFICE SAWHORSE CLAltfl John E, Anderson, inn ap lis M nn- Appli cati'on May 24, 1946, Serial No. 671,991

1 Claims.

This nvention relates to a device ior censtmctins e scaffo ding sue-por or horse. Such a horse commonly comprises a topes pporting member xtendin longitudinally th reof and a mix of leg members adja ent e ch end o said top mem her, the less or each air bein secured to ai @91 membe a t ir u per ends and dive in do nwardw- It s an O ject of th s. n ent nn o p o de a simple and efilci nt de ce or din the p memb r and th ee members and seeur ns h m tightly in pqsitiqn.

7 It is a vfurthe ehie t of the nve ticn to p viclev su h a devi e cpmpri ine a en r l e enn l member even at its u per side and a apted to reeeive. the top member of said supp-sort, casings extend ng nutwardly ircm sas side f sa d ch n member d casin s b ing epen t th bo t m an adap ed 9- r ee ve he upper nds of aid less, tqsether with. Wed es car ie by sa d device and adapted i b d iven .elens on Side ei each l g espectiv ly e c am sa d lee b w en said wedge and o end w n or ai casin It is a fu ther object of. th inve ion provide such a, devi e as etfqrth in the Pr n paragraph, together with members mpva-bly connected thereto and adapted to be positioned vagai s the ends of sai Wedges when. in clamping posi ion an to be eeel red the sa d less to hold said wedges in clampin positipn.

It is more. specifically an je t 9 h i em tion &9 p ovide a device .compris g a central channel, member open at. its upp r side and ad pt to e ive he top member'of said hares, casin s ex end ng; ou ard at e h side of said ehannel having end walls and outer sid walls which di erse dcwnwardly respectively and thu erg-tend at an angle o he sides. of sa d. hannel,

saidcasinss being open at their lower sides and adapted to receive the ripper ends cf the legs of said hbrse, one of said end walls. extending at an ang e to the vertical a d d ll dly awa from the other end wall, wedges. carried by said device end dapt d to be driven upwar ly gainst o side of the legs respectively, said wedges having their inqlined sides adjaeent the end wall which is inclined to the vertical and clamping said legs between said wedges and the other end wall.

It is also an object of the invention to provide such a device as set forth in the preceding paragraph, together with members swingingly connected thereto and adapted to be positioned against the ends of said wed es when in clamp ing position, said members having holes threngh which nails can be driven. into, said legs thus hold s dwedges in clamping pcsiti aid chanmember and casings openingsthrbu which, nails. an be driven into the top member of said support and said legs respectively.

These and other objects and advantages of the inv ntien i b f lly set for h the ollqwill desc ption mad eenneet cn w th the ees em pa ying drawings in which like reference characters refer to similar parts throughout the several i ws and in which:

F 1 is a perspective view of a s afi ns upd 9 h s mbod n e p sen in entiel Pig. 2 is a top plan iew of the device of this nventi n; 7

Fig, 3 is a view in; end elevation, some parts bee ing broken-away and others shown in vertical sec n; nd

Fire! 4 s, a view in s d el etie of id device som ar being b k n wa and hers shswn in vertical section.

ier ihe the dra ngs a i- 98 5 i h n whi h com i e a en rel channel m m e 9% the id s I ef which ex nd v rt cal an sa hanne memb s e n a i pper side hen nel member in is adapted to receive the top m er Ha of e s afip dins supporter h rse I l,- Said top member lla is usually made of a timber, such a a 2 x fl, and he same su stan all fi s in the channel 10a. The walls 10b are provided w th a plurality of h les dj ce t ei ends through which na s may be dr en int mem er Us to. secure member n. theretor j ct outwardly from each side wall lllb of channel we is a casi g 1 1- Casings ltd ha e o te si walls w d in the em odiment i h inve tion illustrated, these walls respectively diverge downwardly and are, thus at an angle tothe sides of hann l as ngs id hav en Well-. male ing a ri ht angle with the side Q hannel ills, one of which nd alls .lllf exte ds vert call a d the other e d W ll lla is. n ined t9 th ertical and extends, downwardly away from end wall Iiif. End wall ID has protuberances lflh termed on its inn r side adapted to bite int or p ess nto the le of the suppo ter horse wh n h same lamped thereagainst. A pin l extends between the outer s de wal 10b of eac of a d eas-v ings and a par t on ediae nt the bct pm 9f Said casing. Partitions ll a e i c mpa ati ely narrow width and extend between th end Wal s of casings Ed, said partitions having their lower sides flush w th t e lewer s des 9f ide wal Ille- A W dge l is p c idled or each casing 01 and said wed es have openings lie ex ending loner: u in l y t ere f thrpllshout m st .of their length and t e p ns l4 extend resp etive y thrc s the o enings 12a. Said wed s. a e t oi h ll w formation, eachhaving a plate -lilge side I20 and an inclined side [21) which is. adjacent the in, clined end wall ,llig of easing ltd, A pair of m mbers i 3 are provided, t e same be n een ected t9 the device. as y havin sPe -tur d ends rough w i P t -e e stapl -d k rr-ei ee 1" ell H 1 ecure o he bowe s elf enam member are, While members I3 could be variously formed, in

the embodiment of the invention illustrated they are shown as in the form of angles. Members I3 have holes l3a adjacent their free ends. The casings Hid also have holes Ink through the outer walls lfleadjacent the bottoms thereof. Casings illd also have top walls Him which extend inwardly from the outer sides [e substantially halfway to the sides of channel a. There is thus an opening through the top of casings Hid In operation, when the support or horse II is to be constructed, the top member or timber Ila will be placed in two of the members 10, as shown in Fig. 1. Nails can then be driven through holes 100 to secure members In to the timber i la. The

legs I lb of the support will now be inserted in the casings Hid successively and these legs will pass upward between partitions llli and the outer walls Ille. They can be moved upwardly until they strike the top wall portion Him. When the leg has been so inserted in a casing 10d, a corresponding wedge 12 will then be driven upwardly. The inclined side of the wedge will move along the inclined side lily of the casing and the straight side of the wedge will thus be pressed against one side of leg lib and said leg will be forced against the wall ID The leg will thus be very securely clamped in position and the protuberances lllh will press into the leg thus assuring that it will be securely held. N'ails can be driven through the holes lflk to further insure that the leg will be firmly held in position. After the legs have been so inserted and wedges i2 driven into place, the members i3 can be swung outwardly along one side of legs llb into contact with the lower ends of wedges i2. A nail will then be driven through the hole l3a into leg Ilb. The wedge 12 is now prevented from any downward movement by member I3. The legs llb are usually made of 2 X 4 timbers. While members I0 could be variously made, in practice they have been made of sheet steel and are thus quite light in weight. Obviously they can also be made of aluminum or other metal.

From the above description it will be seen that I have provided a very simple and highly efficient device for constructing a scaffolding support or horse. The horse can be very quickly made and with very little effort or labor. When constructed, the horse is very strong and rugged. The device has been amply demonstrated in actual practice, found to be very successful and efiicient and is being commercially made.

It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention, which generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

1. A device for constructing a scaffolding support or horse having in combination, a member comprising a central channel open at its upper side and adapted to receive the top of said horse, a casing extending from each side of said channel, said casings being open at their bottoms and adapted to receive the upper ends of the legs of said horse and having outer sides which diverge downwardly respectively to thus extend at an angle to the sides of said channel, and a wedge carried by each casing adapted to be driven upwardly between one end of each casing and one side of said legs respectively to clamp said legs between said wedge and the other end of said casing.

2. The structure set forth in claim 1, a. pin extending across each of said casings, said wedges having an opening therethrough extending longitudinally thereof through which said pin passes whereby said wedges are secured to said casings and move relatively to said pin when driven upwardly to clamping position.

3. The structure set forth in claim 1, and means carried by each of said casings for engaging the end of the wedge of said casing when in clamping, position and adapted to be secured to one of said legs to hold said wedge in clamping position.

4. The structure set forth in claim 1, a partition extending between the end walls of each of said casings adjacent the bottom thereof and parallel to the outer side wall. I

5. A device for constructing a scaffolding support or horse having in combination, a member having a central channel open at its upper side' and adapted to receive the top timber of said support, casings extending outwardly from the sides of said channel, said casings having outer side and end walls, one of said end walls being inclined to the vertical and extending downwardly away from the other end wall, said casings being open at their bottoms and adapted to receive the upper ends of the legs of said support, wedges movably carried by said casings and each having its inclined side adjacent to said one end wall respectively and adapted to be driven against one side of said legs to clamp the same between the other end wall of said casing'and said wedge.

6. The structure set forth in claim 5, members swingingly connected to said casings and adapted to be positioned against the ends of said wedges respectively when in clamping position, said members having holes through which a nail can be driven into said leg to hold said wedge in clamping position.

'7. The structure set forth in claim 1, a partition extending between the end walls of each of said casings adjacent the bottom thereof and parallel to the outer side wall, a pin extending from said partition to said outer side wall, said wedge having an elongated opening extending transversely therethrough which said pin passes whereby said wedge is connected to said casing.

8. The structure set forth in claim 1, said wedges being formed of a strip of material rectangular in cross section and reversely bent upon itself and having its end portions in engagement at the wider end of said wedge whereby said wedge has an opening extending transversely therethrough between the portions of said strip and means secured to each of said casings passing through said opening in said wedge to connect said wedge to said casing and yet permit the driving function of said wedge.

J OHN fE. ANDERSON.

REFERENCES CITED The following references are of record in he file of this patent:

UNITED STATES PATENTS 

